Legal claims defining the scope of protection, as filed with the USPTO.
1. A method for handling a request from a hypervisor in a computing system, comprising: receiving, at a virtual interface from a hypervisor, a request directed to a service provider device; converting the request to a format common to a plurality of two or more different types of operation-specific modules to produce a formatted request; transmitting the formatted request to an operation-specific module of the plurality of operation-specific modules; converting, by the operation-specific module, the formatted request to a command format corresponding to the service provider device; transmitting, by the operation-specific module, the service provider device formatted request to the service provider device; receiving a response from the service provider device at the operation-specific module; converting, by the operation-specific module, the response from the service provider device to the format common to the plurality of two or more different types of operation-specific modules to produce a formatted response; transmitting, by the operation-specific module, the formatted response to the virtual interface; converting the formatted response to a format corresponding to the hypervisor; and transmitting the hypervisor formatted response to the hypervisor.
2. The method of claim 1 , wherein the operation-specific device is a paging device and the service provider device is a virtual block storage device (VBSD).
3. The method of claim 1 , wherein the operation-specific device is a hibernation module.
4. The method of claim 1 , wherein the request is a Read/Write (R/W) operation.
5. The method of claim 1 , wherein the request directed to the service provider device is converted to a command data-link interface (CDLI) format.
6. The method of claim 5 , further comprising processing the CDLI formatted request received at the operation-specific module based upon a content type of the CDLI formatted request.
7. The method of claim 6 , wherein the content type is a paging Input/Output (I/O) request.
8. The method of claim 7 , the processing comprising: a caching process; a read-ahead process; and an I/O coalescing process.
9. An apparatus for handling a request from a hypervisor in a computing system, comprising: a processor; a computer-readable storage medium; a hypervisor; a virtual interface; an operation-specific module; and instructions, stored on the computer-readable storage medium and executed on the processor, for performing a method, the method comprising: receiving, at the virtual interface from the hypervisor, a request directed to a service provider device; converting the request to a format common to a plurality of two or more different types of operation-specific modules to produce a formatted request; transmitting the formatted request to an operation-specific module of the plurality of operation-specific modules; converting, by the operation-specific module, the formatted request to a command format corresponding to the service provider device; transmitting, by the operation-specific module, the service provider device formatted request to the service provider device; receiving a response from the service provider device at the operation-specific module; converting, by the operation-specific module, the response from the service provider device to the format common to the plurality of two or more different types of operation-specific modules to produce a formatted response; transmitting, by the operation-specific module, the formatted response to the virtual interface; converting the formatted response to a format corresponding to the hypervisor; and transmitting the hypervisor formatted response to the hypervisor.
10. The apparatus of claim 9 , wherein the operation-specific device is a paging device and the service provider device is a virtual block storage device (VBSD).
11. The apparatus of claim 9 , wherein the operation-specific device is a hibernation module.
12. The apparatus of claim 9 , wherein the request is a Read/Write (R/W) operation.
13. The apparatus of claim 9 , wherein the request directed to the service provider device is converted to a command data-link interface (CDLI) format.
14. The apparatus of claim 13 , further comprising logic, executed on the processor, for processing the CDLI formatted request received at the operation-specific module based upon a content type of the CDLI formatted request.
15. The apparatus of claim 14 , wherein the content type is a paging Input/Output (I/O) request.
16. The system of claim 15 , the logic for processing comprising: a caching process; a read-ahead process; and an I/O coalescing process.
17. A computer programming product for handling a request from a hypervisor in a computing system, comprising: a physical memory; instructions, stored on the physical memory and executed on a processor, for performing a method, the method comprising: receiving, at a virtual interface from a hypervisor, a request directed to a service provider device; converting the request to a format common to a plurality of two or more different types of operation-specific modules to produce a formatted request; transmitting the formatted request to an operation-specific module of the plurality of operation-specific modules; converting, by the operation-specific module, the formatted request to a command format corresponding to the service provider device; transmitting, by the operation-specific module, the service provider device formatted request to the service provider device; receiving a response from the service provider device at the operation-specific module; converting, by the operation-specific module, the response from the service provider device to the format common to the plurality of two or more different types of operation-specific modules to produce a formatted response; transmitting, by the operation-specific module, the formatted response to the virtual interface; converting the formatted response to a format corresponding to the hypervisor; and transmitting the hypervisor formatted response to the hypervisor.
18. The computer programming product of claim 17 , wherein the operation-specific device is a paging device and the service provider device is a virtual block storage device (VBSD).
19. The computer programming product of claim 17 , wherein the request is a Read/Write (R/W) operation.
20. The computer programming product of claim 17 , wherein the request directed to the service provider device is converted to a command data-link interface (CDLI) format.
21. The computer programming product of claim 20 , further comprising logic for processing the CDLI formatted request received at the operation-specific module based upon a content type of the CDLI formatted request.
22. The computer programming product of claim 21 , wherein the content type is a paging Input/Output (I/O) request.
23. The computer programming product of claim 22 , the logic for processing comprising: a caching process; a read-ahead process; and an I/O coalescing process.
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March 6, 2018
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